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Architecture firms are reporting a drop in billings as concerns about the broader economy and tariffs impact commercial real estate development and spending.

The AIA/Deltek Architecture Billings Index (ABI) remained in negative territory in June with a score of 46.8, down from 47.2 in May. Anything below 50 is considered negative sentiment. 

“Business conditions were soft nationwide in June, with a slight billing increase in the South for the first time since October,” said Kermit Baker, chief economist at AIA, the American Institute of Architects. “Other regions saw declining billings, though at a slower pace. While all specializations experienced softer billings, the decline slowed for commercial/industrial and institutional firms. Multifamily firms faced the weakest conditions, with further declines.”

One bright spot was inquiries into new projects, which increased for the second consecutive month and grew at the strongest pace since last fall with a score of 53.6. This suggests that clients are starting to send out requests for proposals and will start working with architecture firms on potential projects. 

AIA notes that these inquiries do not necessarily translate into actual projects. The value of newly signed design contracts also fell for the 16th straight month. Billings are not likely to improve until the value of these new design contracts also sees gains. 

The AIA also put out its midyear forecast:

The AIA forecasts that overall spending on nonresidential buildings, not adjusted for inflation, will increase only 1.7% this year and grow very modestly to just 2% next year. 

Spending on the construction of manufacturing facilities, which had been a bright spot in recent years, is now expected to decline 2% this year, with an additional drop of 2.6% next year. Institutional facilities are expected to be the strongest sector with projected gains of 6.1% this year and another 3.8% in 2026.

In addition to a slowing economy, unclear and constantly changing tariff policy is creating growing uncertainty in the architect, engineer and construction services industry. 

“Not knowing what products will cost in the future, whether they will be available, how these changes might affect their supply chain, and whether they will provoke a trade war with the exporting countries are all questions that the AEC industry is asking before proceeding with planned projects,” according to the report.